In "I'm Waiting for the Day," "free" in the line "To set your broken heart free" is sung with a melisma (B A G#). Since the word isn't constrained to a single syllable, there's a sense of its meaning.
"So" in the line "And that you still loved him so" is sung with this same melisma, but in this instance it gives a sense of degree. (I'd noted this before, but I didn't include the specific pitches in that post, which was so badly written that I removed it.)
